There's nothing worse than a flat tire. Luckily, replacing a bike tire tube is easier than you think.
WHAT YOU'LL NEED
Disconnect the brake and take the wheel off using the wrench
Take the wheel off the bike.
Lean the bike up against something stable.
Unscrew the valve cap and deflate the tube.
Empty it right out.
Pinch the tire and insert the tire lever.
It should come off pretty easily.
Hook the tire lever to flip the bead of the tire outside the rim.
Use the second tire lever in there and work around the tip:
Flipping the rest of the bead outside the rim.
Pull out the inner tube.
If you don't have access to a spare tube, you can patch up the hole.
Use the abrasive pad to smooth out the rough surface of the hole.
Use the alcohol pad to clean the area.
Let it dry for 30 seconds.
Apply the glue and patch.
Leave for about 30 seconds.
Run your fingers along the inside of the tire.
This is to make sure there's nothing that may puncture the tire.
Put a bit of air in the tube to give it some shape.
Insert the valve stem into the hole of the rim.
Begin to gently place the tube back inside the tire.
Using your hands, begin to work the bead back into the rim, moving from one side to the other.
Inflate the tire to proper pressure and reattach your bike.
Ensure the tube isn't caught in the bead or the rim.